Pirelli Tyre S.p.a.

Walter Mandelli

Maurizio Marchini

Fiorenzo Mariani

Marco Cantu′

Stefano Mervic

Stefano Sangiovanni

Marco Cantu'

Antonio Mirto

Marco CantÙ

Method and plant for producing tyres for vehicle wheels in which: each vulcanizer () of a plurality of vulcanizers () is associated with a respective pick-up logic of green tyres from at least one storage area () of green tyres; upon each request to vulcanize a green tyre in a vulcanizer () of the plurality of vulcanizers (), the pick-up logic associated with said vulcanizer () is applied to select and pick up a green tyre from the storage area (); the respective pick-up logic associated with each vulcanizer () comprises a first pick-up rule of green tyres from the storage area () and, for at least one of the plurality of vulcanizers (), the first pick-up rule is changed into at least one second pick-up rule at least once during the production in the plant () of at least one lot of tyres.

Method and plant for producing tyres for vehicle wheels

A method and plant for producing tyres for vehicle wheels in which: each vulcanizer of a plurality of vulcanizers is associated with a respective pick-up logic of green tyres from at least one storage area of green tyres; upon each request to vulcanize a green tyre in a vulcanizer of the plurality of vulcanizers, the pick-up logic associated with the vulcanizer is applied to select and pick up a green tyre from the storage area; and the respective pick-up logic associated with each vulcanizer includes a first pick-up rule of green tyres from the storage area and, for at least one of the plurality of vulcanizers, the first pick-up rule is changed into at least one second pick-up rule at least once during the production in the plant of at least one lot of tyres.

A process for manufacturing a reinforcing structure of a tire for vehicle wheels, is carried out on a toroidal support including an outer surface, by means of at least one laying element, which can be oriented in space in a controlled way; the laying element including a laying surface adapted to act on a portion of a rubberized strip-like element for laying the same on the outer surface of the toroidal support. The reinforcing structure includes at least a first and a second radially superimposed reinforcing layers, each including a plurality of strip-like elements; each reinforcing layer having a circumferential extension about a rotation axis of the tire and comprising thread-like reinforcing elements, arranged parallel to one another. The layers are arranged so that the reinforcing thread-like elements of the first reinforcing layer are oriented obliquely with respect to the equatorial plane of the tire, and that the reinforcing thread-like elements of the second reinforcing layer also have an oblique orientation, crossed with respect to the thread-like elements of the first layer.

Process and apparatus for manufacturing a reinforcing structure of a tyre for vehicle wheels

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Bellinzago Lombardo, Italy

Walter Mandelli